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    <title>知识付费会员App - 原型预览</title>
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        body {
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            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        }
        .prototype-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(430px, 1fr));
            gap: 30px;
        }
        .device-container {
            position: relative;
            width: 410px;
            margin: 0 auto;
        }
        .device-frame {
            background: #000;
            border-radius: 44px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            padding: 10px;
            position: relative;
        }
        .screen {
            overflow: hidden;
            border-radius: 34px;
        }
        .iframe-container {
            width: 100%;
            height: 844px;
        }
        iframe {
            border: none;
            width: 100%;
            height: 100%;
        }
        .device-label {
            text-align: center;
            margin-top: 15px;
            font-weight: bold;
            color: #333;
            font-size: 1rem;
        }
        .device-note {
            text-align: center;
            color: #666;
            font-size: 0.85rem;
            margin-top: 4px;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: bold;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e5e7eb;
            color: #333;
        }
    </style>
</head>
<body>
    <div class="container mx-auto py-10 px-6">
        <header class="text-center mb-12">
            <h1 class="text-3xl font-bold mb-3">知识付费会员App - 原型预览</h1>
            <p class="text-gray-600 max-w-2xl mx-auto">
                以下展示了面向 iOS/Android 平台设计的知识付费会员App高保真原型设计。每个原型模拟了 iPhone 15 Pro 的尺寸和外观，提供了完整的用户界面和交互设计参考。
            </p>
        </header>

        <h2 class="section-title">核心用户流程</h2>
        <div class="prototype-grid">
            <!-- 首页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/home.html" title="首页"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">首页</div>
                <div class="device-note">展示推荐内容、热门课程和会员入口</div>
            </div>

            <!-- 发现页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/discover.html" title="发现页"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">发现页</div>
                <div class="device-note">提供内容分类浏览和搜索功能</div>
            </div>

            <!-- 学习中心原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/learning.html" title="学习中心"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">学习中心</div>
                <div class="device-note">管理学习进度和课程</div>
            </div>

            <!-- 会员页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/membership.html" title="会员页"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">会员页</div>
                <div class="device-note">展示会员权益和订阅选项</div>
            </div>
        </div>

        <h2 class="section-title">个人中心与账户管理</h2>
        <div class="prototype-grid">
            <!-- 个人中心原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/profile.html" title="个人中心"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">个人中心</div>
                <div class="device-note">用户个人信息和账户管理</div>
            </div>

            <!-- 登录/注册页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/login.html" title="登录/注册"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">登录/注册</div>
                <div class="device-note">用户账号登录与注册流程</div>
            </div>
        </div>

        <h2 class="section-title">内容浏览与学习</h2>
        <div class="prototype-grid">
            <!-- 课程详情页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/course-detail.html" title="课程详情"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">课程详情</div>
                <div class="device-note">展示课程信息和购买选项</div>
            </div>

            <!-- 内容学习页原型 -->
            <div class="device-container">
                <div class="device-frame">
                    <div class="screen">
                        <div class="iframe-container">
                            <iframe src="pages/course-learning.html" title="内容学习"></iframe>
                        </div>
                    </div>
                </div>
                <div class="device-label">内容学习</div>
                <div class="device-note">视频播放和课程内容学习界面</div>
            </div>
        </div>

        <footer class="mt-16 text-center text-gray-500">
            <p>知识付费会员App - 高保真原型设计</p>
            <p class="mt-2 text-sm">© 2023 版权所有</p>
        </footer>
    </div>
</body>
</html> 